/// <summary>
 /// 最旧排序
 /// </summary>
 /// <returns></returns>
 public static List <Sell> Oldest()
 {
     return(SellingHousesDAL.Newest());
 }
 /// <summary>
 /// 价格排序从高到低
 /// </summary>
 /// <returns></returns>
 public static List <Sell> Higtlow()
 {
     return(SellingHousesDAL.Higtlow());
 }
 /// <summary>
 /// 接个排序从低到高
 /// </summary>
 /// <returns></returns>
 public static List <Sell> Lowthig()
 {
     return(SellingHousesDAL.Lowthig());
 }
 /// <summary>
 /// 查询交易属性
 /// </summary>
 /// <param name="SellID"></param>
 /// <returns></returns>
 public static Transactions OnlyTransactions(int SellID)
 {
     return(SellingHousesDAL.OnlyTransactions(SellID));
 }
 /// <summary>
 /// 查询图片
 /// </summary>
 /// <param name="SellID"></param>
 /// <returns></returns>
 public static List <SImg> OnlySImg(int SellID)
 {
     return(SellingHousesDAL.OnlySImg(SellID));;
 }
 /// <summary>
 /// 查询卖点
 /// </summary>
 /// <param name="SellID"></param>
 /// <returns></returns>
 public static Selling OnlySelling(int SellID)
 {
     return(SellingHousesDAL.OnlySelling(SellID));
 }
 //SellingHousesDAL dal = new SellingHousesDAL();
 public static List <Sell> SellsList()
 {
     return(SellingHousesDAL.SellsList());
 }
        /// <summary>
        /// 取消关注
        /// </summary>
        /// <param name="id"></param>
        /// <param name="UserID"></param>
        /// <returns></returns>
        public static int DeleSFollow(int id, int UserID)
        {
            SellingHousesDAL dal = new SellingHousesDAL();

            return(dal.DeleSFollow(id, UserID));
        }
 /// <summary>
 /// 添加关注
 /// </summary>
 /// <param name="id"></param>
 /// <param name="UserID"></param>
 /// <returns></returns>
 public static int AddSFollow(int id, int UserID)
 {
     return(SellingHousesDAL.AddSFollow(id, UserID));
 }
 /// <summary>
 /// 查询关注
 /// </summary>
 /// <param name="id"></param>
 /// <param name="UserID"></param>
 /// <returns></returns>
 public static List <SCollection> SFollow(int id, int UserID)
 {
     return(SellingHousesDAL.SFollow(id, UserID));
 }